I wouldn't worry about being marked and I don't know if it's df'ing offense to get one while still active. Did you grow up in the troof or were you brainwashed like me? I had 3 when I became a dub. One on my ankle that everyone saw all the time...what am I gonna do..wear bobbie socks with heels to go with all that meeting garb?
Just make sure you really want what's gonna be written! I have one I don't want anymore.
I think going with something about your kids would be nice. Let us know what you decide on!! Be careful....they can be addictive!!!!